Spade-wheel plow



(No Model.) 2 Sheets-Sheet 1.

' H. SKILLINGS.

SPADE WHEEL PLOW. No. 271,142. Patented JaILZS, 1883.

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W @fw (No Model.) 2 sneetsL-sheen 2. 1 H. SKILLINGS.

No. 271,142. Patented Jan.23,1i883.

WITNESSES] |N\/F NT0R,

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, UNITED STATES PATENT OFFICE.

IIIRAM SKILLINGS, OF NEW BEDFORD, MASSACHUSETTS.

SPADE-WHEEL PLOW.

SPECIFICATION forming part of Letters Patent No. 271,142, dated January23, 1883. Application tiled October 3, 1882. (No model.)

To all whom it may concern:

Be it known that I, HIRAM SKILLINGs, a citizen of the United States,residing at New Bedford, in the county of Bristol and State ofMassachusetts, have invented certain new and useful Improvements inSpade-Wheel Plows, of which the following is a specification, referencebeing had therein tothe accompanying drawings. i

My invention relates to spade-wheel plows; and it consists in theconstruction and arrangement of its several parts, as will behereinafter fully set forth, and pointed out in the claim.

1n the drawings, Figure l is atop plan View; Fig. 2, a side elevation,partly in section; Fig. 3, an elevation of oneof the spade-wheels withthe face-plate removed; Fig. 4, a View of the face-plate; and Fig. 5, aperspective showing the base of 011e of the teeth. Fig. 6 is a verticalsection, showing the adjustability ot' the middle section or support.Fig. 7 is a detail ot the adjustable support.

lhe 'frame to which the operating mechanisni is secured may be of suchmaterial and construction as experience may tind best suited for thepurpose.

In order to clearly illustrate the invention, l

have shown an ordinary sill or broad bar, A, to which the mechanism isattached. Secured to the sill A is the seat a andthe tongue a',

which is secured by the pin a2, and is capable of lateral adjustment bymeans of the pin a3,

which caube placed iu any one of a series ot' holes in the sill.

Secured horizontally to the rear of the sill, and at right angles to it,are the spade-wheel supports B, and hinged-between them by the shaft I),or by other suitable mechanism, is the support B', as shown. Thesesupports are of peculiar shape. Spaces are cut between them in which thespade-wheels revolve, and the sides to .which said wheels are axled arecut to an angle of about thirty degrees with the direction of thesupports, as shown in Fig. l.

Secured to the angled sides ofthe supports upon suitable axles are thespade-wheels D,

l which consist each of two circular disks, d, and

curved teeth or spades cZ, as shown. The disks each have an annulargroove, cl2, cut in their laces, and from equal points around thecircumference ot' which extend the mortises cl3, for the reception ofthe teeth or spades, as shown. The teeth or spades have T-shaped endswhich enter the grooves d2, the body of the teeth resting in themortises d3, as shown. rEhe portions of the teeth whichA project from*the mortises are curved over toward the supports to which they arerespectively aXled. When all the teeth are in place upon one ofthedisks, the other is placed over and the two bolted together bythebolts d, (see Fig. 6,) thus holding the spades rmly in place.

The advantages ot' the construction shown and described are that it doesits work in a more satisfactory manner and with less eX- penditule ot'power than an ordinary moldu board plow, and that by having the middlesupport hinged the machine can easily pass over obstructions.

The special advantages of the construction of the spade-wheels are thatthe spades dig into the soil and turn the dirt over very thoroughly, andpulverize when they turn out in the revolutions ot' the wheel; and alsothat part of the teeth in the ground will hold the plow from turningsidewise during the entrance of' the other tooth, thus making each Wheelan independent plow in effect.

In a revolving plow, the combination, with the sill A and journal-shaftb, of the angular supports B B B', each provided at its rear end withthe diagonally-arranged spade-Wheel, the supports B B being Vrigidlysecured to the sill, and the support B hinged to the shaft b,substantially as described.

lntestimony whereof I hereby affix my signature in presence ot'witnesses.

HIRAM SKILLINGS.

Witnesses:

ARTHUR E. PERRY, JOHN W. NUTTWooD, WILLIAM B. SMITH.

